Help! Stutterer here about to speak in front of 2000 high school kids!!! Gah!!

Help! Stutterer here about to speak in front of 2000 high school kids!!! Gah!! Tomorrow is my high school's homecoming pep rally. As I was prom king last year (when I was a junior), I now have to announce the 28 names of the kids on my school's homecoming (in front of 2000+ students and faculty.) I did not volunteer for this, but nor did I argue, since I don't want to break school tradition. I am typically a very confident and fluent speaker, having trouble only when I speak in front of people. When I do speak in front of people, I have to be in the right state of mind in order to not stutter. I typically have blocks at the beginnings of words, nowhere else. I have lived with a stutter most of my life, and only in the past couple years have I begun to get a strong hold on my speech. Any last minute tips for a very nervous young man?!! UPDATE: Sorry for being a bit late on this, but it went remarkably well--I didn't stutter once! I did not get a chance to say that I had a stutter, but it ended up not being necessary. I suppose speaking into a microphone is different, and so I was able to use the delay in the microphone to remind myself to use my strategies. My duties, which I wasn't too clear on, were to announce the names of the 28 boys and girls, along with my school's prom queen, and say a little rhyme that rhymes with their name. It went great, and I couldn't have been more relieved afterwards. That was a very good day. Thanks for your concern and support! The advice here helped me keep the courage I needed to not ask someone else to say the rhymes for me!